The Gymnic activity ball is a great way to get both kids and adults exercising in a way which is both fun and engaging. The ball itself is transparent and contains several inner multi-coloured balls which help stimulate both spatial perception and co-coordination whilst making exercising fun. The Activity Ball will help improve your child’s spatial perception skills. If you need a Faster Blaster hand pump to inflate your Activity Ball, click here. Max 50cm diamater Class I Medical Device compliant with European regulation. Warning! In case of puncture the ball bursts. Please make sure that the ball is used on a surface free from pointed objects. Warning! For body weight exercise only. Lifting weights while using the product may cause injuries to the user. Recommended weight: max. 120 kg (270 lbs) / Tested load capacity: max. 300 kg (660 lbs).